Convenient chair frame

Abstract

The utility model relates to a chair frame, in particular to a portable chair frame, which comprises a cushion, a backrest, a front support leg frame, a rear support leg frame, a support frame, a connecting piece and a foot pad, the support frame is L-shaped, the cushion is horizontally connected with the support frame through the connecting piece, and the foot pad is arranged on the backrest. The backrest is perpendicularly connected with the supporting frame through a connecting piece, the front supporting foot stool and the rear supporting foot stool are connected to the two sides of the bottom of the supporting frame respectively, inserting grooves are formed in the lower end of the front supporting foot stool and the lower end of the rear supporting foot stool, and the foot pads are arranged in the inserting grooves. According to the utility model, through the modular design, the chair is quick to disassemble and assemble, light and easy to carry; meanwhile, the cushion and the backrest are provided with the cushions, and the comfort during use is enhanced through the connecting blocks made of rubber materials.

Description

Technical Field

[0001] This utility model relates to a chair frame, and more particularly to a portable chair frame. Background Technology

[0002] As people's living standards improve and their lifestyles become more diversified, the demand for furniture is no longer limited to basic functional satisfaction, but is developing towards greater comfort, convenience and personalization.

[0003] Traditional chairs generally cannot stack multiple chair frames together, making them inconvenient to store. They are also mostly fixed structures, making them difficult to disassemble and assemble, and inconvenient to move and store. At the same time, the seat cushions and backrests lack sufficient cushioning materials, resulting in insufficient comfort. Utility Model Content

[0004] In order to overcome the shortcomings of traditional chairs, which mostly use fixed structures and are difficult to disassemble and assemble quickly, making them inconvenient to move or store, the purpose of this utility model is to provide a convenient chair frame.

[0005] Technical solution: A portable chair frame includes a seat cushion, a backrest, a front support leg, a rear support leg, a support frame, connectors, and foot pads. The support frame is L-shaped. The seat cushion is horizontally connected to the support frame via connectors, and the backrest is vertically connected to the support frame via connectors. The front support leg and the rear support leg are respectively connected to the bottom sides of the support frame. The lower ends of the front support leg and the rear support leg are provided with slots, and the foot pads are provided in the slots.

[0006] As an improvement to the above solution, the connector includes a connecting block, a threaded sleeve, and a connecting bolt. The connecting block is installed on the side of the seat cushion and the backrest facing the support frame. The threaded sleeve is embedded in the support frame. The support frame is connected to the seat cushion and the backrest through the threaded sleeve and the connecting bolt.

[0007] As an improvement to the above solution, the connecting block is frustum-shaped and made of rubber.

[0008] As an improvement to the above solution, the foot pad includes a support block, a connecting rod, a plastic sleeve, a support ring, and a limiting block. The connecting rod is connected to the plastic sleeve, the support block is sleeved on the outside of the connecting rod, the support ring is connected to the upper part of the slot, the limiting block is provided above the plastic sleeve, and the upper end of the connecting rod passes through the limiting block and the support ring in sequence.

[0009] As an improvement to the above solution, the seat cushion includes a seat plate, a first anti-slip pad, and a first cushioning pad. The bottom of the seat plate is connected to the front support leg and the support frame via a connector. The first anti-slip pad is disposed on the top of the seat plate, and the top of the first anti-slip pad is connected to the first cushioning pad.

[0010] As an improvement to the above solution, the backrest includes a backrest board, a second anti-slip pad, and a second cushioning pad. The backrest is connected to the support frame via a connector. The second anti-slip pad is disposed on the front side of the backrest board, and the front side of the second anti-slip pad is connected to the second cushioning pad.

[0011] As an improvement to the above solution, the top of the support block is spherical, and the bottom of the plastic sleeve is provided with a groove that matches the top of the support block.

[0012] The beneficial effects of this utility model are as follows: This utility model achieves quick assembly and disassembly and is lightweight and portable through modular design. The two chair frames can be stacked together for easy storage. The seat and backrest are equipped with cushioning pads, and rubber connecting blocks enhance comfort during use. The footpads can adaptively adjust their angle to increase the contact area with the ground, thus maintaining excellent stability on various surfaces, especially uneven terrain. Furthermore, the anti-slip pads and cushioning pads are secured with Velcro, facilitating cleaning and replacement and improving maintenance convenience. The overall design not only ensures structural stability and safety but also greatly enhances the chair's adaptability and user experience. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention from a first perspective.

[0014] Figure 2 This is a three-dimensional structural schematic diagram of the second perspective of this utility model.

[0015] Figure 3 This is an exploded view of the present invention.

[0016] Figure 4 This is an exploded view of the connector of this utility model.

[0017] Figure 5 This is a cross-sectional view of the front support leg of this utility model.

[0018] Figure 6 This is an exploded view of the foot pad of this utility model.

[0019] Figure 7 This is an exploded view of the seat cushion of this utility model.

[0020] Figure 8 This is an exploded view of the backrest of this utility model.

[0021] In the attached diagram, the labels are: 1-seat cushion, 2-backrest, 3-front support leg, 4-rear support leg, 5-support frame, 6-connecting block, 61-threaded sleeve, 7-connecting bolt, 8-slot, 9-foot pad, 91-support block, 92-connecting rod, 93-plastic sleeve, 94-support ring, 95-limiting block, 101-seat plate, 102-first Velcro strap, 103-first anti-slip pad, 104-first cushioning pad, 201-backrest, 202-second Velcro strap, 203-second anti-slip pad, 204-second cushioning pad. Detailed Implementation

[0022] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0023] A portable chair frame, such as Figures 1-8As shown, the chair includes a seat cushion 1, a backrest 2, a front support leg 3, a rear support leg 4, a support frame 5, connectors, and foot pads 9. The support frame 5 is L-shaped. The seat cushion 1 is horizontally connected to the support frame 5 via connectors, and the backrest 2 is vertically connected to the support frame 5 via connectors. The front support leg 3 and the rear support leg 4 are respectively connected to the front and rear sides of the bottom of the support frame 5. Both the front support leg 3 and the rear support leg 4 are welded to the support frame 5, forming a simple and reliable chair frame. The frame achieves a simple, easy-to-store, strong, practical, and aesthetically pleasing effect. Moreover, the two chair frames can be stacked together for easy storage. The lower ends of the front support leg 3 and the rear support leg 4 are provided with slots 8, and the slots 8 are provided with foot pads 9. The connecting parts include connecting blocks 6, threaded sleeves 61, and connecting bolts 7. The connecting blocks 6 are installed on the side of the seat cushion 1 and the backrest 2 facing the support frame 5. The connecting blocks 6 are frustum-shaped and made of rubber, which has a cushioning effect and improves comfort. The support frame 5 is internally fitted with the threaded sleeve 61. The support frame 5 is connected to the seat cushion 1 and the backrest 2 via the threaded sleeve 61 and the connecting bolt 7. The foot pad 9 includes a support block 91, a connecting rod 92, a plastic sleeve 93, a support ring 94, and a limiting block 95. The connecting rod 92 is connected to the inner side of the plastic sleeve 93. The lower end of the connecting rod 92 is hemispherical. The support block 91 is fitted onto the outer side of the lower end of the connecting rod 92. When the support block 91 is supported on the ground, it can adaptively adjust its angle around the connecting rod 92 to maintain its contact with the ground. To maximize contact area and improve stability, the plastic sleeve 93 gradually decreases in diameter from top to middle, facilitating insertion into the slot 8. As the weight of the person presses down on the chair, the plastic sleeve 93 can be inserted into the slot 8. The top of the support block 91 is spherical, and the bottom of the plastic sleeve 93 has a groove that matches the top of the support block 91, allowing the support block 91 to adaptively adjust its angle. The upper part of the slot 8 is connected to the support ring 94, and the plastic sleeve 93 is provided with a limiting block 95 above it. The upper end of the connecting rod 92 passes through the limiting block 95 and the support ring 94 in sequence.

[0024] like Figure 1 and Figure 7 As shown, the seat cushion 1 includes a seat plate 101, a first Velcro 102, a first anti-slip pad 103, and a first cushioning pad 104. The bottom of the seat plate 101 is connected to the front support leg 3 and the support frame 5 through a connector. The first anti-slip pad 103 is disposed on the top of the seat plate 101, and the two are connected by the first Velcro 102. The top of the first anti-slip pad 103 is connected to the first cushioning pad 104.

[0025] like Figure 1 and Figure 8As shown, the backrest 2 includes a backrest 201, a second Velcro 202, a second anti-slip pad 203, and a second cushioning pad 204. The backrest 2 is connected to the support frame 5 via a connector. The second anti-slip pad 203 is disposed on the front side of the backrest 201, and the two are connected by the second Velcro 202. The front side of the second anti-slip pad 203 is connected to the second cushioning pad 204.

[0026] Working Principle: The core structure of this chair consists of an L-shaped support frame 5 as the main body, with the front support leg 3 and the rear support leg 4 fixed at the front and rear ends respectively, forming a stable base. The seat cushion 1 and the backrest 2 are connected to the support frame 5 via a detachable connector: the connector includes a frustum-shaped rubber connecting block 6, which, through a threaded sleeve 61 and a connecting bolt 7, fixes the seat cushion 1 and backrest 2 to the horizontal and vertical directions of the support frame 5 respectively. The cushioning properties of the rubber material improve user comfort, ensuring structural strength while facilitating assembly and disassembly. The outer diameter of the plastic sleeve 93 gradually decreases from top to bottom, allowing it to automatically engage with the slot 8 under the weight of the user. The support block 91 can rotate freely around the connecting rod 92, automatically adjusting its angle when the chair contacts the ground, increasing the contact area and enhancing stability. The slot 8 is equipped with a support ring 94 and a limiting block 95 to prevent the plastic sleeve 93 from being over-inserted or loosened. Both the seat cushion 1 and the backrest 2 adopt a layered structure. The top of the seat plate 101 of the seat cushion 1 is attached to an anti-slip pad via the first Velcro 102, and a first cushioning pad 104 is laid on top of the anti-slip pad. The front side of the backrest plate 201 of the backrest 2 is fixed to the second anti-slip pad 203 via the second Velcro 202, and the surface is covered with the second cushioning pad 204. This design allows the anti-slip layer and the cushioning layer to be quickly removed for cleaning or replacement. Furthermore, the spherical structure at the top of the support block 91 mates with the groove at the bottom of the plastic sleeve 93, further optimizing ground adaptability and ensuring the chair's stability on uneven surfaces. The overall structure achieves lightweight, adjustable, and easy-to-maintain characteristics through modular connections.

[0027] Although the present invention has been described with reference to exemplary embodiments, it should be understood that the present invention is not limited to the disclosed exemplary embodiments. The scope of the following claims should be given the broadest interpretation in order to cover all variations and equivalent structures and functions.

Claims

1. A portable chair frame, characterized by, The utility model provides a kind of chair, including cushion (1), backrest (2), front support foot frame (3), rear support foot frame (4), support frame (5), connecting piece and foot pad (9), the shape of the support frame (5) is L type, the cushion (1) is connected with the support frame (5) horizontally by connecting piece, the backrest (2) is connected with the support frame (5) vertically by connecting piece, the support frame (5) bottom two sides are connected with the front support foot frame (3) and the rear support foot frame (4) respectively, the front support foot frame (3) and the rear support foot frame (4) lower end are all provided with slot (8), the slot (8) is all equipped with the foot pad (9).

2. A foldable chair frame according to claim 1, wherein Connecting piece includes connecting block (6), threaded sleeve (61) and connecting bolt (7), the side of the cushion (1) and the backrest (2) towards the support frame (5) is equipped with the connecting block (6), the support frame (5) is embedded with the threaded sleeve (61), the support frame (5) is connected with the cushion (1) and the backrest (2) by the threaded sleeve (61) and the connecting bolt (7).

3. A foldable chair frame according to claim 2, wherein The connecting block (6) is circular truncated cone type, and its material is rubber.

4. A foldable chair frame according to claim 3, wherein The foot pad (9) includes support block (91), connecting rod (92), plastic sleeve (93), support ring (94) and limiting block (95), the plastic sleeve (93) is connected with the connecting rod (92), the support block (91) is sleeved on the outer side of the connecting rod (92), the slot (8) is connected with the support ring (94) in upper portion, the plastic sleeve (93) is equipped with the limiting block (95) above, the connecting rod (92) upper end is sequentially penetrated through the limiting block (95) and the support ring (94).

5. A foldable chair frame according to claim 4, wherein The cushion (1) includes seat plate (101), first antiskid pad (103) and first buffer pad (104), the seat plate (101) bottom is connected with the front support foot frame (3) and the support frame (5) by connecting piece, the first antiskid pad (103) is arranged on the seat plate (101) top, and the first antiskid pad (103) top is connected with the first buffer pad (104).

6. A foldable chair frame according to claim 5, wherein The backrest (2) includes back plate (201), second antiskid pad (203) and second buffer pad (204), and the backrest (2) is connected with the support frame (5) by connecting piece, the second antiskid pad (203) is arranged on the front side of the back plate (201), and the front side of the second antiskid pad (203) is connected with the second buffer pad (204).

7. A foldable chair frame according to claim 6, wherein The support block (91) top is spherical, and the plastic sleeve (93) bottom is provided with recess adapted to the support block (91) top.

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